How many CVEs have patched componentIsHTMLElement?

1 published CVEs changed componentIsHTMLElement in withastro/astro, in 2 distinct patches totalling 2 changed lines, between 2026 and 2026.

What is the latest CVE that changed componentIsHTMLElement?

CVE-2026-59729 (Astro: XSS via unescaped spread attribute names in renderHTMLElement (incomplete fix for CVE-2026-54298)), published 2026-07-27, changed lines 4 of packages/astro/src/runtime/server/render/dom.ts.

How does componentIsHTMLElement compare to the rest of withastro/astro?

withastro/astro has 34 CVEs with a located fix in total; 1 of them changed componentIsHTMLElement.

What do the line numbers refer to?

Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

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withastro/astro

Function

componentIsHTMLElement

Name: componentIsHTMLElement in withastro/astro: CVE fixes
Creator: RadicalNotion.AI
License: https://creativecommons.org/licenses/by-nc/4.0/

packages/astro/src/runtime/server/render/dom.ts

Last patched July 27, 2026

1

CVEs

That changed this function

2

Distinct patches

Backports counted once

2

Lines changed

Added plus removed

2026

Years

By CVE publication date

Overview

componentIsHTMLElement in withastro/astro was changed by 1 published CVE fixes in 2026, in 2 distinct patches that added or removed 2 lines in total.

withastro/astro has 34 CVEs with a located fix in total, so 3% of them touched this function.

CVEs that patched it

Every published CVE whose fix changed componentIsHTMLElement, newest first, with the lines each fix touched.

Astro: XSS via unescaped spread attribute names in renderHTMLElement (incomplete fix for CVE-2026-54298)
CVE-2026-59729 · line 4 · +1 −1
Medium · CVSS 5.1
EPSS 0.5%2026-07-27

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Other functions in these files

Functions in the same file that CVE fixes also changed.

1renderHTMLElementpackages/astro/src/runtime/server/render/dom.ts1 CVEs · 2 patches2026

Other hotspots in the repository

Functions in withastro/astro changed by the most CVE fixes.

loadRemoteImage3 CVEs · packages/astro/src/assets/endpoint/shared.ts createRequest2 CVEs · packages/astro/src/core/app/node.ts remoteImagesFromAstroConfig2 CVEs · packages/integrations/netlify/src/index.ts remotePatternToRegex2 CVEs · packages/integrations/netlify/src/index.ts createEndpoint2 CVEs · packages/astro/src/core/server-islands/endpoint.ts createManifest2 CVEs · packages/astro/src/container/index.ts

All patched functions in withastro/astro

Frequently asked questions

Common questions about CVE fixes to componentIsHTMLElement.

How many CVEs have patched componentIsHTMLElement?: 1 published CVEs changed componentIsHTMLElement in withastro/astro, in 2 distinct patches totalling 2 changed lines, between 2026 and 2026.
What is the latest CVE that changed componentIsHTMLElement?: CVE-2026-59729 (Astro: XSS via unescaped spread attribute names in renderHTMLElement (incomplete fix for CVE-2026-54298)), published 2026-07-27, changed lines 4 of packages/astro/src/runtime/server/render/dom.ts.
How does componentIsHTMLElement compare to the rest of withastro/astro?: withastro/astro has 34 CVEs with a located fix in total; 1 of them changed componentIsHTMLElement.
What do the line numbers refer to?: Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

References

Fix locations are computed by RadicalNotion.AI from the upstream patch diff of each CVE. CVE data is sourced from the CVE Program.

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